Reply/Threading History in Gmail NOT WORKING

Hi all - I am building an email agent in n8n.

When a new gmail message comes in, it has the entire thread history of the conversation embedded in it (similar to how the UI in gmail has the thread history underneath i.e. the 3 dots.)

This has allowed me to just pass in that single message and get the entire history of the thread to analyze (and attachments), even if its 10 messages long, rather than having to build out the thread and attachments myself.

The problem is I have not found any way to reply to the thread from the Agent where it maintains that same thread history. I can reply to the message or thread, but the thread history is broken.

Ive found no way to do this via Gmail node or Gmail Api. Please help if you have a solution!!

Many thanks!

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